Free antivirus software for Windows

I use to use Norton and I pay for it every year then I found out about these two programs -
Comodo Antivirus and Internet Security
Avira Antivirus

Since then I have used both and am satisfied. I would recommend Comodo over Avira, just because Avira can annoy you with pop ups wanting you to upgrade to the paid version.

I'm using Microsoft Security Essentials and find it's fantastic.

Try looking at that, and it's free.

Andy

Maybe i'll try it out. Free is always good.

If you're looking for a free solution, I believe Microsoft's Security Essentials are the way to go, don't even look at AVG.

it is worthless too. Try to use avira and you will forget other one definitely.

i am using quickheal and i am not 100% impressed with it. One of my colleague said he is using macafee and he likes it.

Avast is a FREE and decent AV, I use it on my laptop. Currently running Nod32 on my desktop that I do alot of downloading on. Previously used Bit Defender that one I do not recommend.

Agree. I suggest you to not use this because it removes corrupted system files too which is a problematic task for us rather we may reinstall windows but i don't think it is a good option. I would love to suggest you to use avira. and if you want more protection then you may use malwarebytes and comodo firewall with it this will give you far better protection with the lots more other troubles too. Combi of these three is a great solution.

AVG has always worked for me, and its light on system resources. It may not be the best out there, but it certainly does do a good job.

NOD32 is best.

Spyware Cease is your best choice. you can try to use this bestspywarescaner.

I just use kaspersky trial version, every month I setup xp again and install trial version.

Free antivirus software are nice but do not have all features enable. So I recommend you to buy a complete package of antivirus..
But otherwise McAfee is good one...it also have best Internet security..

well its depend on your system requirement that what is the best antivirus for you..but i suggest nod32, which is suitable for all system.

Using AVG on this computer and it has not done the job as evidenced by following to procedures suggested and all I found, plus the Run DLL error I am still working on. Someone else suggested AVAST as 98% accurate??? Doesn't sound like AVG is too popular on here and haven't heard much on AVAST overall... guess I'll keep my ear to the ground :-)